as heart disease continues to be the number one killer in the united states

Comprehension

Direction: Read the passage given below and answer the questions that follow by selecting the most appropriate option.

As heart disease continues lớn be the number one killer in the United States, researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks. High fat diets and life in the fastlane have long been known lớn contribute lớn the high incidence of heart failure. But according lớn new studies, the list of risk factors may be significantly longer and quite surprising.

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Heart failure appears lớn have seasonal and temporal patterns. A higher percentage of heart attack occurs in cold weather and more people experience heart failure on Monday phàn nàn on any other day of the week. In addition, people are more susceptible lớn heart attacks in the first few hours after waking. Cardiologists first observed this morning phenomenon in mid 1980 and have since discovered a number of possible causes. An early morning rise in blood pressure, heart rate and concentration of heart stimulating hormones, plus a reduction of blood flow lớn the heart, may all contribute lớn the incidents of heart attacks between the hours of 8:00 a.m. and 10:00 a.m. 

According lớn the passage, which of the following is not a possible cause of many heart attacks?

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Official Paper 1: UTET 2019 Paper 1 (Hindi-I, English-I, / Hindi-II, English-III, Sanskrit-II)

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  1. Decreased blood flow lớn heart
  2. Increased blood pressure
  3. Lower heart rate
  4. Increase in hormones

Answer (Detailed Solution Below)

Option 3 : Lower heart rate

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The correct answer is Lower heart rate.

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Key Points

  • Look at the line: An early morning rise in blood pressure, heart rate and concentration of heart stimulating hormones, plus a reduction of blood flow lớn the heart, may all contribute lớn the incidents of heart attacks.
  • Thus, we can conclude that high blood pressure, high heart rate, higher level of hormones and decreased blood flow are the possible causes of heart attacks.
  • Hence, lower heart rate as a cause has nowhere been mentioned.

Last updated on Jun 7, 2023

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